package com.asiainfo.ncrm.base;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Iterator;
import java.util.Map;
import java.util.UUID;

import android.util.Log;

/**
* 
* 上传工具类
* @author spring sky<br>
* Email :vipa1888@163.com<br>
* QQ: 840950105<br>
* 支持上传文件和参数
*/
public class UploadUtil {
private static UploadUtil uploadUtil;
private static final String BOUNDARY = UUID.randomUUID().toString(); // 边界标识 随机生成
private static final String PREFIX = "--";
private static final String LINE_END = "\r\n";
private static final String CONTENT_TYPE = "multipart/form-data"; // 内容类型
private UploadUtil() {

}

/**
* 单例模式获取上传工具类
* @return
*/
public static UploadUtil getInstance() {
if (null == uploadUtil) {
uploadUtil = new UploadUtil();
}
return uploadUtil;
}

private static final String TAG = "UploadUtil";
private int readTimeOut = 10 * 1000; // 读取超时
private int connectTimeout = 10 * 1000; // 超时时间
/***
* 请求使用多长时间
*/
private static int requestTime = 0;

private static final String CHARSET = "utf-8"; // 设置编码

/***
* 上传成功
*/
public static final int UPLOAD_SUCCESS_CODE = 1;
/**
* 文件不存在
*/
public static final int UPLOAD_FILE_NOT_EXISTS_CODE = 2;
/**
* 服务器出错
*/
public static final int UPLOAD_SERVER_ERROR_CODE = 3;
protected static final int WHAT_TO_UPLOAD = 1;
protected static final int WHAT_UPLOAD_DONE = 2;

/**
* android上传文件到服务器
* 
* @param filePath
* 需要上传的文件的路径
* @param fileKey
* 在网页上<input type=file name=xxx/> xxx就是这里的fileKey
* @param RequestURL
* 请求的URL
*/
public void uploadFile(String filePath, String fileKey, String RequestURL,
Map<String, Object> param) {
if (filePath == null) {
sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
return;
}
try {
File file = new File(filePath);
uploadFile(file, fileKey, RequestURL, param);
} catch (Exception e) {
sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
e.printStackTrace();
return;
}
}

/**
* android上传文件到服务器
* 
* @param file
* 需要上传的文件
* @param fileKey
* 在网页上<input type=file name=xxx/> xxx就是这里的fileKey
* @param RequestURL
* 请求的URL
*/
public void uploadFile(final File file, final String fileKey,
final String RequestURL, final Map<String, Object> param) {
if (file == null || (!file.exists())) {
sendMessage(UPLOAD_FILE_NOT_EXISTS_CODE,"文件不存在");
return;
}

Log.i(TAG, "请求的URL=" + RequestURL);
Log.i(TAG, "请求的fileName=" + file.getName());
Log.i(TAG, "请求的fileKey=" + fileKey);
new Thread(new Runnable() { //开启线程上传文件
@Override
public void run() {
toUploadFile(file, fileKey, RequestURL, param);
}
}).start();

}

private void toUploadFile(File file, String fileKey, String RequestURL,
Map<String, Object> param) {
String result = null;
requestTime= 0;

long requestTime = System.currentTimeMillis();
long responseTime = 0;

try {
URL url = new URL(RequestURL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(readTimeOut);
conn.setConnectTimeout(connectTimeout);
conn.setDoInput(true); // 允许输入流
conn.setDoOutput(true); // 允许输出流
conn.setUseCaches(false); // 不允许使用缓存
conn.setRequestMethod("POST"); // 请求方式
conn.setRequestProperty("Charset", CHARSET); // 设置编码
conn.setRequestProperty("connection", "keep-alive");
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY);
// conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

/**
* 当文件不为空，把文件包装并且上传
*/
DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
StringBuffer sb = null;
String params = "";

/***
* 以下是用于上传参数
*/
if (param != null && param.size() > 0) {
Iterator<String> it = param.keySet().iterator();
while (it.hasNext()) {
sb = null;
sb = new StringBuffer();
String key = it.next();
String value = param.get(key).toString();
sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
sb.append("Content-Disposition: form-data; name=\"").append(key).append("\"").append(LINE_END).append(LINE_END);
sb.append(value).append(LINE_END);
params = sb.toString();
Log.i(TAG, key+"="+params+"##");
dos.write(params.getBytes());
// dos.flush();
}
}

//sb = null;
//params = null;
//sb = new StringBuffer();
/**
* 这里重点注意： name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件
* filename是文件的名字，包含后缀名的 比如:abc.png
*/
//sb.append(PREFIX).append(BOUNDARY).append(LINE_END);
//sb.append("Content-Disposition:form-data; name=\"" + fileKey
//+ "\"; filename=\"" + file.getName() + "\"" + LINE_END);
//sb.append("Content-Type:image/pjpeg" + LINE_END); // 这里配置的Content-type很重要的 ，用于服务器端辨别文件的类型的
//sb.append(LINE_END);
//params = sb.toString();
//sb = null;
//
//Log.i(TAG, file.getName()+"=" + params+"##");
//dos.write(params.getBytes());
/**上传文件*/
//InputStream is = new FileInputStream(file);
//onUploadProcessListener.initUpload((int)file.length());
//byte[] bytes = new byte[1024];
//int len = 0;
//int curLen = 0;
//while ((len = is.read(bytes)) != -1) {
//curLen += len;
//dos.write(bytes, 0, len);
//onUploadProcessListener.onUploadProcess(curLen);
//}
//is.close();

dos.write(LINE_END.getBytes());
byte[] end_data = (PREFIX + BOUNDARY + PREFIX + LINE_END).getBytes();
dos.write(end_data);
dos.flush();
// 
// dos.write(tempOutputStream.toByteArray());
/**
* 获取响应码 200=成功 当响应成功，获取响应的流
*/
int res = conn.getResponseCode();
responseTime = System.currentTimeMillis();
this.requestTime = (int) ((responseTime-requestTime)/1000);
Log.e(TAG, "response code:" + res);
if (res == 200) {
Log.e(TAG, "request success");
InputStream input = conn.getInputStream();
StringBuffer sb1 = new StringBuffer();
int ss;
while ((ss = input.read()) != -1) {
sb1.append((char) ss);
}
result = sb1.toString();
Log.e(TAG, "result : " + new String(result.toString().getBytes("GBK")));
sendMessage(UPLOAD_SUCCESS_CODE, "上传结果："
+  new String(result.toString().getBytes("GBK")));
return;
} else {
Log.e(TAG, "request error");
sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：code=" + res);
return;
}
} catch (MalformedURLException e) {
sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：error=" + e.getMessage());
e.printStackTrace();
return;
} catch (IOException e) {
sendMessage(UPLOAD_SERVER_ERROR_CODE,"上传失败：error=" + e.getMessage());
e.printStackTrace();
return;
}
}

/**
* 发送上传结果
* @param responseCode
* @param responseMessage
*/
private void sendMessage(int responseCode,String responseMessage)
{
onUploadProcessListener.onUploadDone(responseCode, responseMessage);
}

/**
* 下面是一个自定义的回调函数，用到回调上传文件是否完成
* 
* @author shimingzheng
* 
*/
public static interface OnUploadProcessListener {
/**
* 上传响应
* @param responseCode
* @param message
*/
void onUploadDone(int responseCode, String message);
/**
* 上传中
* @param uploadSize
*/
void onUploadProcess(int uploadSize);
/**
* 准备上传
* @param fileSize
*/
void initUpload(int fileSize);
}
private OnUploadProcessListener onUploadProcessListener;

public void setOnUploadProcessListener(
OnUploadProcessListener onUploadProcessListener) {
this.onUploadProcessListener = onUploadProcessListener;
}

public int getReadTimeOut() {
return readTimeOut;
}

public void setReadTimeOut(int readTimeOut) {
this.readTimeOut = readTimeOut;
}

public int getConnectTimeout() {
return connectTimeout;
}

public void setConnectTimeout(int connectTimeout) {
this.connectTimeout = connectTimeout;
}
/**
* 获取上传使用的时间
* @return
*/
public static int getRequestTime() {
return requestTime;
}

public static interface uploadProcessListener{

}

}